MESON Chess Problem Database
Problem Display
PID: 18499 (8/3Rp3/2K1P3/3B2Bb/4p2r/nppk3r/5PPb/NN2Q2n w - - 0 1)
Mansfield, Comins
1st Prize, Die Schwalbe, 1956
#2
10 + 11
| 3976 | FIDE Album (1956-1958) | 1961 |
| 3147 | Chess Problems: Introduction to an Art | 1963 |
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 3364 | Solving in Style | 1985 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
| 3550 | Complete Mansfield/II | 1997 |
| 23 | Die Schwalbe | 2004 |
| 133 | The Problemist Supplement | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Qxe3#
- 1...Rf3
- 2.Qd1#
- 1...Rg3
- 2.Bxb3#
- 1...Rf4
- 2.Bxb3#
- 1...Rg4
- 2.Qd1#
- 1...Bg1
- 2.Bxb3#
- 1...Bg3
- 2.Qe3#
- 1...Bf4
- 2.Qxe4#
- 1...Bd1
- 2.Qxd1#
- 1...Be2
- 2.Qxc3#
- 1...Bf3
- 2.Qe3#
- 1...Bg4
- 2.Qxe4#
- 1...Bg6
- 2.Qd1#
- 1...Bf7
- 2.Qd1#
- 1...Be8
- 2.Qd1#
- 1...Sg3
- 2.Bxb3#
- 2.Qe3#
- 1...Sc4
- 2.Bxe4#
- 1...c2
- 2.Qd2#
- 1...Re3
- Tries
- 1.Bf4?
- threat
- 2.Bxb3#
- 2.Qxe4#
- 1...Kd4
- 2.Bxb3#
- 2.Qxe4#
- 1...Rxf4
- 2.Bxb3#
- 1...Bxf4
- 2.Qxe4#
- 1...Sxf2
- 2.Bxb3#
- 1...Re3
- 2.Bxb3#
- 2.Qxe3#
- 1...Be2
- 2.Bxb3#
- 2.Qxc3#
- 1...Bf3
- 2.Bxb3#
- 2.Qe3#
- 1...Bg6
- 2.Bxb3#
- 2.Qd1#
- 1...Be8
- 2.Qd1#
- 2.Qxe4#
- 1...Sg3
- 2.Bxb3#
- 2.Qe3#
- 1...Sc2
- 2.Qxe4#
- 1...Sc4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...b2
- 2.Ba2#
- 2.Bb3#
- 2.Qxe4#
- 1...e3!
- threat
- 1.f4?
- threat
- 2.Bxb3#
- 2.Qxe4#
- 1...Kd4
- 2.Bxb3#
- 2.Qxe4#
- 1...Rxf4
- 2.Bxb3#
- 1...Bxf4
- 2.Qxe4#
- 1...Sxb1
- 2.Bxb3#
- 1...exf4 ep
- 2.Qd1#
- 2.Qe3#
- 1...Be2
- 2.Qxc3#
- 1...Re3
- 2.Bxb3#
- 1...Bg1
- 2.Qxe4#
- 1...Bf3
- 2.Bxb3#
- 1...Bg6
- 2.Bxb3#
- 1...Be8
- 2.Qxe4#
- 1...Sf2
- 2.Bxb3#
- 1...Sg3
- 2.Bxb3#
- 1...Sc2
- 2.Qxe4#
- 1...Sc4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...b2
- 2.Ba2#
- 2.Bb3#
- 2.Qxe4#
- 1...e3!
- threat
- 1.gxh3?
- threat
- 2.Qe3#
- 1...Kd4
- 2.Qxc3#
- 1...Rxh3
- 2.Qxe4#
- 1...e3
- 2.Qxe3#
- 1...Bf4
- 2.Qxe4#
- 1...Be2
- 2.Qxc3#
- 1...Sc4
- 2.Bxe4#
- 1...Sc2!
- threat
- 1.g3?
- threat
- 2.Bxb3#
- 2.Qe3#
- 1...Kd4
- 2.Qxc3#
- 1...Rxg3
- 2.Bxb3#
- 1...Bxg3
- 2.Qe3#
- 1...e3
- 2.Qxe3#
- 1...Be2
- 2.Bxb3#
- 2.Qxc3#
- 1...Be8
- 2.Qd1#
- 2.Qe3#
- 1...Sc4
- 2.Bxe4#
- 1...Sb5
- 2.Qe3#
- 1...b2
- 2.Ba2#
- 2.Bb3#
- 2.Qe3#
- 1...Sc2!
- threat
- 1.g4?
- threat
- 2.Qd1#
- 2.Qxe4#
- 1...Kd4
- 2.Qxe4#
- 1...Rxg4
- 2.Qd1#
- 1...Bxg4
- 2.Qxe4#
- 1...Sxb1
- 2.Qxe4#
- 1...e3
- 2.Qd1#
- 1...Re3
- 2.Qd1#
- 2.Qxe3#
- 1...Bf4
- 2.Qxe4#
- 1...Bg6
- 2.Qd1#
- 1...Sg3
- 2.Bxb3#
- 2.Qd1#
- 2.Qe3#
- 1...Sc4
- 2.Bxe4#
- 2.Qxe4#
- 1...c2
- 2.Qd2#
- 2.Qxe4#
- 1...Sxf2!
- threat
- 1.Bf4?
- Keys
- 1.f3!
- threat
- 2.Qd1#
- 2.Qe3#
- 1...Kd4
- 2.Qxc3#
- 1...Rxf3
- 2.Qd1#
- 1...Bxf3
- 2.Qe3#
- 1...Sxb1
- 2.Qe3#
- 1...e3
- 2.Qd1#
- 2.Qxe3#
- 1...Rf4
- 2.Bxb3#
- 1...Bg1
- 2.Qd1#
- 1...Bf4
- 2.Qxe4#
- 1...Sf2
- 2.Qe3#
- 1...Sc2
- 2.Qd1#
- 1...Sc4
- 2.Bxe4#
- 1...c2
- 2.Qd2#
- 2.Qe3#
- threat
- 1.f3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- R(g);N_GUARD::QAR1(C),XR(g)
- R(g);S_CUTB(j)::QAR2(C)
- R(g);S_CUTB(b)::R(J)+B(F),XP(d)
- R(i);S_CUTB(b)::R(J)+B(F),XP(d)
- R(i);S_CUTB(j)::QAR2(C)
- B(b);N_GUARD::R(J)+B(F),XP(d)
- B(b);S_CUTR(g)::QAR1(C)
- B(b);S_CUTR(i)::QAB1(C),XP(h)
- B(j);N_GUARD::QAR2(C),XB(j)
- B(j);SBLOCK::QAR1(C),XP(e)
- B(j);S_CUTR(g)::QAR1(C)
- B(j);S_CUTR(i)::QAB1(C),XP(h)
- B(j);N_GUARD::QAR2(C)
- B(j);N_GUARD,P_PINR(J)::QAR2(C)
- S(c);SBLOCK::R(J)+B(F),DCHECK,XP(h)
- P(e);N_GUARD::QAR1(C)
- Tries
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(i);XB(G)::R(J)+B(F),XP(d)
- B(b);XB(G)::QAB1(C),XP(h)
- S(a);XP(D)::R(J)+B(F),XP(d)
- S(c);::QAB1(C),XP(h)
- Refutation
- P(h);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(i);XP(D)::R(J)+B(F),XP(d)
- B(b);XP(D)::QAB1(C),XP(h)
- S(c);XS(B)::R(J)+B(F),XP(d)
- B(j);SBLOCK::QAR1(C),XP(e)
- R(g);::R(J)+B(F),XP(d)
- B(b);::QAB1(C),XP(h)
- B(j);::R(J)+B(F),XP(d)
- B(j);P_PINR(J)::QAB1(C),XP(h)
- S(a);::R(J)+B(F),XP(d)
- S(c);::QAB1(C),XP(h)
- Refutation
- P(h);
- Try
- P(E);XR(g)
- Threat
- QAR1(C)
- Vars
- K(f);P-FLIGHT::QAB1(C),XP(e)
- R(i);N_GUARD,XP(E)::QAB1(C),XP(h)
- P(h);::QAR1(C),XP(h)
- B(b);S_CUTR(i)::QAB1(C),XP(h)
- B(j);SBLOCK::QAR1(C),XP(e)
- S(c);SBLOCK::R(J)+B(F),DCHECK,XP(h)
- Refutation
- S(c);
- Try
- P(E);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT::QAB1(C),XP(e)
- R(g);XP(E)::R(J)+B(F),XP(d)
- B(b);XP(E)::QAR1(C)
- P(h);::QAR1(C),XP(h)
- S(c);SBLOCK::R(J)+B(F),DCHECK,XP(h)
- S(c);::QAR1(C)
- Refutation
- S(c);
- Try
- P(E);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT::QAR1(C),XP(h)
- R(i);XP(E)::QAR2(C)
- B(j);XP(E)::QAB1(C),XP(h)
- S(c);XS(B)::QAB1(C),XP(h)
- P(h);::QAR2(C)
- B(b);::QAB1(C),XP(h)
- B(j);::QAR2(C)
- Refutation
- S(a);XP(D)
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT::QAB1(C),XP(e)
- R(g);XP(D)::QAR2(C)
- B(j);XP(D)::QAR1(C)
- S(c);XS(B)::QAR1(C)
- R(i);S_CUTB(b)::R(J)+B(F),XP(d)
- B(b);::QAR2(C)
- B(b);S_CUTR(i)::QAB1(C),XP(h)
- S(a);::QAR1(C)
- S(c);::QAR2(C)
- S(c);SBLOCK::R(J)+B(F),DCHECK,XP(h)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).